code: def output_dim(self, auxiliary_output=None):
      return self.attention_output_dim()
  
file_path: espnet/egs2/esc50/asr1/steps/libs/nnet3/xconfig/attention.py
imports: from __future__ import print_function
  from __future__ import division
  import math
  import re
  import sys
  from libs.nnet3.xconfig.basic_layers import XconfigLayerBase
label_desc: Use image node_id 7 for calling the XconfigAttentionLayer obj's underlying member method code with example usage: obj.output_dim(auxiliary_output) and returns: self